I would like to help you all and talk about the Psi balls so lets start :)

How to make a Psi Ball ?
PSI is a form of energy and making PSI balls is nothing more than making a ball of energy. You are in reality molding psi energy with your mind and hands to form the psi balls into a round shape. The vast majority of the time people call them psi balls, however, you can construct them into the shape of a psi square or a psi brick or any other shape you may choose

To start to make a PSI ball, you want to first get your hands attuned to feeling energy. This is easily accomplished by holding your hands in front of you, almost like you are praying. Then lightly rub your palms together to create a small amount of heat.
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Q.Can we Feel the PSI Balls Energy in your hands ?
A. Yes we can !

Feel the sensation of that heat in your palms. Now move your hands apart slightly. Just a half inch or so will do. You will notice there is a slight difference in the feeling of the heat in your palms. If it so happens that you have lost the feeling of the heat completely, just take a moment to rub your palms together again.

Once you know what that heat energy feels like with your hands a half inch apart, move your hands about 2 inches apart. The feel of the energy should change but you should still be able to feel the energy.

Now slowly move your hands closer together and feel how the energy changes. It may take a few tries of moving your hands closer and further apart in a sort of bouncing motion. Moving them just an inch or two at a time but not to the point of actually touching. Eventually, you will realize that the energy between your hands is starting to compress.
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Good Luck :-)

To program a psi ball is a very similar process like making a servitor/though form/ spell. Only that you are not using correspondences just a mental command or image of what want it to do, the difference with a servitor is that the last one acts as an spirit, is a created spiritual being.

A psy ball could have the function "hurt/pain" or "heal" the main habilities are being good at meditation and visualization (can be hearing or taste too) also when you visualizate how do you want you psi ball/energy to affect the target you are already programming it.

When i work with healing i use a mix of angelic and jewish belief system. I recite a short version of the rosacrucian cross to reach a sainthood state/holy energy. Then i recite like a mantra Raphael "RAAAAAAHHHHHHHPHAAAAAAAAEEEEELLLL" in the most low pitch tone possible (all with reverence) then i visualize light green light bathering the one i want to heal. Then i bind the inmediate reality of the person the Great Union/The principle/ A & O/"God" by word describing His/It attributes like Anaphaxeton Primeumaton Tetragrammaton. If i see dark energies and gets difficult to visualize Sacred Light then i visualize something similar and more easy to my mind, cherubs flying dancing around the person. Somethings i blow sacred wind/Holy Spirit into the person. Then i finish thanking Raphael, and laugh in a dramatic way to banish (is a technique from Chaos Magick) All i described to you act as a programing.

I do martial arts, here im just using dark color energy but this i have it in a very early stage, i am trying to develope the hability to transmit fear/horror with my energy without battlecry screaming. For this i need to develope telekinesis because i know is more related to that.

I believe that what we call psy energy is the very same prana/ki/chi/ether/od once had entered our spiritual body system, then radiated from our thoughts, and these last are what program willingly (or not) the hability of the psy ball.